Geological Properties
Garnet is a name used to describe a diverse group of silicate minerals. Garnets are found in metamorphic and igneous rocks. They form under extremely high temperatures and pressure. Color of garnet found from deep red to bright violet-red. Almandine is the deep wine red color of garnet that results from iron and chromium. Garnet has a hardness from 7 to 7.5 on the Mohs scale (Mohs).
You can clean your garnet with warm soapy water and a soft brush. Always make sure you rinse the stone well after washing it. Ultrasonic treatments may also be used for any garnets except the demantoid variety. Do not steam clean your garnet. As with other stones, one should take care of their garnet and protect it from sharp blows, harsh temperatures and chemicals.
References:
https://en.wikipedia.org/wiki/Garnet
https://www.crystalvaults.com/crystal-encyclopedia/Garnet
https://www.minerals.net/mineral/Garnet.aspx
https://geology.com/minerals/Garnet.shtml